Steam turbine sagging

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Thread Starter

Bajrang kaswan

If during the steam turbine shutdown, turning gear malfunctioned, then is there any chance that rotor will bow in upper side (+ve)...

In my opinion it will always bow toward bottom (-ve) due to gravity and high temp.
 
I have only experienced downwards bow, but I would say that if the bottom of the rotor cools down more quickly than the upper side it could be possible but it would be only temporary and eventually the gravity would take over as the temperature difference disappears.
 
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